Soccer Football - UEFA Nations League - Semi Final - Italy v Spain - San Siro, Milan, Italy - October 6, 2021 Spain's Ferran Torres and Italy's Federico Chiesa swap shirts at the end of the first half REUTERS/Alessandro Garofalo

A lumberjack carries firewood bundles on a motorcycle in Bajil district of Hodeida province, Yemen, June 24, 2021. More than six years of war between the recognised government backed by a Saudi-led coalition and the Houthi movement aligned with Iran has killed tens of thousands of people and left 80% of Yemen's population reliant on aid. The fuel shortages due to a coalition blockade on Houthi-held areas, including limiting access to the main port of Hodeidah, have led businesses and families to swap diesel and gas for firewood. The alliance says the blockade is needed to foil arms smuggling. REUTERS/Khaled Abdullah SEARCH "ABDULLAH DEFORESTATION" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Lumberjacks load bundles of firewood onto a truck in Khamis Banisaad district of al-Mahweet province, Yemen, June 24, 2021. More than six years of war between the recognised government backed by a Saudi-led coalition and the Houthi movement aligned with Iran has killed tens of thousands of people and left 80% of Yemen's population reliant on aid. The fuel shortages due to a coalition blockade on Houthi-held areas, including limiting access to the main port of Hodeidah, have led businesses and families to swap diesel and gas for firewood. The alliance says the blockade is needed to foil arms smuggling. REUTERS/Khaled Abdullah SEARCH "ABDULLAH DEFORESTATION" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Villagers ride on top a vehicle loaded with fodder as they cross a spring lake in Khamis Banisaad district of al-Mahweet province, Yemen, June 23, 2021. More than six years of war between the recognised government backed by a Saudi-led coalition and the Houthi movement aligned with Iran has killed tens of thousands of people and left 80% of Yemen's population reliant on aid. The fuel shortages due to a coalition blockade on Houthi-held areas, including limiting access to the main port of Hodeidah, have led businesses and families to swap diesel and gas for firewood. The alliance says the blockade is needed to foil arms smuggling. REUTERS/Khaled Abdullah SEARCH "ABDULLAH DEFORESTATION" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Soccer Football - International Friendly - Germany v Denmark - Tivoli Stadium, Innsbruck, Austria - June 2, 2021 Germany's Mats Hummels and Denmark's Thomas Delaney swap shirts after the match Pool via REUTERS/Federico Gambarini

Soccer Football - Copa Libertadores - Group D - Fluminense v River Plate - Maracana, Rio de Janeiro, Brazil - April 22, 2021 Fluminense's Fred and River Plate's Federico Girotti swap shirts after the match Pool via REUTERS/Silvia Izquierdo

Soccer Football - Europa League - Round of 16 Second Leg - AC Milan v Manchester United - San Siro, Milan, Italy - March 18, 2021 Manchester United's Paul Pogba and AC Milan's Zlatan Ibrahimovic swap shirts after the match REUTERS/Daniele Mascolo

Soccer Football - Champions League - Round of 16 First Leg - FC Barcelona v Paris St Germain - Camp Nou, Barcelona, Spain - February 16, 2021 Barcelona's Lionel Messi swaps shirts with Paris St Germain's Mauro Icardi after the match REUTERS/Albert Gea

Soccer Football - Champions League - Round of 16 First Leg - FC Barcelona v Paris St Germain - Camp Nou, Barcelona, Spain - February 16, 2021 Barcelona's Lionel Messi swaps shirts with Paris St Germain's Mauro Icardi after the match REUTERS/Albert Gea

Soccer Football - FA Cup - Fifth Round - Barnsley v Chelsea - Oakwell, Barnsley, Britain - February 11, 2021 Chelsea's Mateo Kovacic swaps shirts with a Barnsley player at the end of the match Action Images via Reuters/Lee Smith

Soccer Football - FA Cup - Fourth Round - Barnsley v Norwich City - Oakwell, Barnsley, Britain - January 23, 2021 Norwich City's Mario Vrancic and Barnsley's Dominik Frieser swap shirts after the match Action Images/Jason Cairnduff

People take from themselves swap samples for COVID-19 testings at the Port of Dover, amid the coronavirus disease (COVID-19) outbreak, in Dover, Britain, December 24, 2020. REUTERS/Simon Dawson

Demonstrators hold up a sign and a mock submarine during a protest against Israeli Prime Minister Benjamin Netanyahu's alleged corruption and his handling of the coronavirus disease (COVID-19) crisis, near Netanyahu's official residence in Jerusalem, December 5, 2020. The sign reads: "A corrupt prime minister is swapped in court". REUTERS/Amir Cohen

Soccer Football - UEFA Nations League - League C - Group 4 - Kazakhstan v Lithuania - Almaty Central Stadium, Almaty, Kazakhstan - November 18, 2020 Kazakhstan's Aibol Abiken looks dejected at the end of the match while Sergey Khizhnichenko and Lithuania's Mark Beneta swap shirts REUTERS/Pavel Mikheyev

Paramilitary police officers swap positions during a change of guard in front of Potala Palace in Lhasa, during a government-organised tour of the Tibet Autonomous Region, China, October 15, 2020. Picture taken October 15, 2020. REUTERS/Thomas Peter

A boy looks on as he waits for freed Saudi-led coalition prisoners one day after their release in a prisoner swap, in Marib, Yemen, October 16, 2020. REUTERS/Nusaibah Almuaalemi

A boy waits for freed Saudi-led coalition prisoners one day after their release in a prisoner swap, in Marib, Yemen, October 16, 2020. REUTERS/Nusaibah Almuaalemi

A boy carries a rifle as he waits for freed Saudi-led coalition prisoners, one day after their release in a prisoner swap, in Marib, Yemen, October 16, 2020. REUTERS/Nusaibah Almuaalemi

Freed Saudi-led coalition prisoners gesture from a bus one day after their release in a prisoner swap, in Marib, Yemen, October 16, 2020. REUTERS/Nusaibah Almuaalemi

People gesture to freed Saudi-led coalition prisoners one day after their release in a prisoner swap, in Marib, Yemen, October 16, 2020. REUTERS/Nusaibah Almuaalemi

Houthi fighters shout slogans as they arrive at Sanaa Airport after their release in a prisoner swap, Sanaa, Yemen October 16, 2020. REUTERS/Khaled Abdullah

Houthi fighters disembark an ICRC plane upon their arrival at Sanaa Airport after their release in a prisoner swap, in Sanaa, Yemen October 16, 2020. REUTERS/Khaled Abdullah

A Houthi fighter hugs a relative upon his arrival at Sanaa Airport after his release in a prisoner swap, Sanaa, Yemen October 16, 2020. REUTERS/Khaled Abdullah

A Houthi fighter hugs a relative upon his arrival at Sanaa Airport after his release in a prisoner swap, Sanaa, Yemen October 16, 2020. REUTERS/Khaled Abdullah

A Houthi fighter hugs a relative upon his arrival at Sanaa Airport after his release in a prisoner swap, Sanaa, Yemen October 16, 2020. REUTERS/Khaled Abdullah

Houthi fighters pray as they arrive at Sanaa Airport after their release during a prisoner swap, Sanaa, Yemen October 16, 2020. REUTERS/Khaled Abdullah

Houthi fighters pray as they arrive at Sanaa Airport after their release during a prisoner swap, Sanaa, Yemen October 16, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners shout slogans as they arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners pray as they arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah TPX IMAGES OF THE DAY

Freed Houthi prisoners shout slogans as they arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners shout slogans as they arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah TPX IMAGES OF THE DAY

A freed Houthi prisoner hugs a relative after his release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners shout slogans as they arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Saudi-led coalition prisoners pray as they arrive after their release in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Freed Saudi-led coalition prisoners wave as they arrive after their release in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Freed Saudi-led coalition prisoners arrive after their release in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Freed Saudi-led coalition prisoners arrive after their release in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Freed Houthi prisoners arrive after their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Houthi prisoners pray as they arrive after release their release in a prisoner swap, in Sanaa airport, Yemen October 15, 2020. REUTERS/Khaled Abdullah

Freed Saudi-led coalition prisoners arrive after their release in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Freed Saudi-led coalition prisoners shout slogans as they arrive, after release in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Freed Saudi-led coalition prisoners arrive after their release in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

A freed Saudi-led coalition prisoner hugs a relative after his release in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

A freed Saudi-led coalition prisoner hugs a relative after his release in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

A man looks at a plane waiting to carry Houthi prisoners to be released by the Saudi-led coalition in a prisoner swap, in Sayoun, Yemen October 15, 2020. REUTERS/Ali Owidha

Houthi prisoners board a plane before heading to Sanaa airport as they are released by the Saudi-led coalition in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

A Houthi prisoner is carried into a plane to be transported to Sanaa airport as he is released by the Saudi-led coalition in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Houthi prisoners board a plane before heading to Sanaa airport as they are released by the Saudi-led coalition in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Houthi prisoners board a plane before heading to Sanaa airport as they are released by the Saudi-led coalition in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Houthi prisoners board a plane before heading to Sanaa airport after being released by the Saudi-led coalition in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha TPX IMAGES OF THE DAY

Houthi prisoners board a plane before heading to Sanaa airport as they are released by the Saudi-led coalition in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha

Houthi prisoners board a plane before heading to Sanaa airport after being released by the Saudi-led coalition in a prisoner swap, at Sayoun airport, Yemen October 15, 2020. REUTERS/Ali Owidha